Grenade projected from small-arms.



F. DEUBLBR.

GRENADE PROJEGTBD FROM SMALL ARMS.

APPLIOATION FILED DEGl 16, 1912.

Patented Apr. 8', 1913.

MAQ.

4 www Noms PETERS. RNC LIYHO WASHLNGION D C.

ein

"illtlITED STATES 'Pillilflll renne neunten, or vienne,.aUs'rRiA-ii'o'NGanr,' Assiettes, To rines e. neen, AKTIENGESELLSCHAFT,or VIENNA, .AUSTRIA-Heimann A commissies or AUSTRIA.

intense.-

GRENADE rnoJncrEn riioii SMALL-asias.

Patented spit t?, QEY

- Appnemu med December is, 191e. serial no. 736,933.

"llii's, invention'ielates to Urenades ro` jected' from small` arms, anditsobject isto utilize the safety device, which is provided on such agrenade forretaining thepereussive plunger, for Vthe further purpose .of

initiating the operation of a timeviis, pro-V vided on the grenade. i lthas been foiind', that small arm grenades,

whichliitherto have. been fitted Withpercus. sion `i'iises onli do notalways operate etiectively or-even fail entirely especially When` thegrenades strike upon soft or marsliy ground, and in order to insuretliemeperetion of the grenades.- in all circumstances, or even 'to'cause an 'explosion thereof 'in the air ebovethe object, the grenadesaccording to the present invention 'are tt'e'd .with time lures,whicli'are set in act-ion at themoinent of discharge-ofthe' grenade. v

iin-'accordance -Withtheinvention, a device is employed'foiistar'tingthe 'time fuse,"

which Yhas already "been provided on gre naties for preventing thepermissive 'plunger accidentally or prematurely moving fornerdeigainst'tlie-` priming of the grenade, :md this safety .device isisocombined-With toe igniting-'device of the. time fuse, that on piejection of the grenade the safety device for the percussion plungerthereof, positively sets this igniting device in action.

v A constructiona'l 'formof the sub3ect of theinvention is illustrate-d'on the accom-'- pzi'nying drawing, in vwhich Figure l.' is alongitudinal section, and a, side elevation, in which a strip` is usedAas a safety" device .foif' the .percussive plunger, which strip .onprojection of the grenade "remains hanging on the barrel of the smallarm and thereby releases the perciissive plunger forV causing ignitionon im- 'ac-t,

p ln this drawing, @indicates the body of. the grenade, i5 the burstingcharge thereof, c the detonator and d a percussion cap', by meansofwhicli the ignition of the bursting-charge is initiated on impact offthe gremide; e is the Y pereussive plunger of the gre- .n'sde and f thesafety device for the latter which iii the illustrated example consistsa dat, strip, which; with its ii'i'clos i hoollied .eind g engages overthe permissive plunger, 'end *v'vitli its forked rear end formed:is1inwardly. directed lioolrs fi, engagesV around' `the base of theforesight o ofthe small arm and there-by lretains the percussive plunger.e until progeetionot the grenade. The guide-rod of the grenade isdenoted'by. by means of which it is inserted in thebarrel of the smallarm, and is a protective casing, ttor protecting the safety.' device ofthe percussive plunger against accidental or unintentional actus--tion.'

The base of thcgrenade in accordance with theinventiom-is fitted with atime fuse, 'which in the known manner consistsof tivo mutuallylrota'seble priming rings m,=whieh .in accordance 'with their-relativepositions pro vide :i longer or shorter priming channel. The primingrings surround the per vided With :i friction igniter n for the ignitionof the priming ofthe time fuse. In the simplest forni of econstruetion,illustrated, this igniter consists of a friction 'wire n, Which isembedded in a'sniall tube filled with-'friction priming and coupled tothe safety strip fot the permissive plunger. In the illustrated example,this coupling is effected by the strip'f engaging by means of a notchthe thickened and bent end of the friction Wire n. On projection of thegre nade, the friction Wire n is retained by and as well as the strip f,which reina-ins on the barrel, and the Wire' as aresult is drawn out of'the' priming tube 'and ignites the priming. The ignition vtravels alongthe priming channel inthe priming rings mto a propelling charge plocated in the body of the grenade, in which a plunger Z' is embedded.On the propelling charge being fired, it propelsthe plunger l into thedetonator-c embedded in the burstingcharge b, and thereby ignites andexplodes the latter. In order to insure the tiring .of the charge ivhenthe `percussive fuse becomes operative, the' percussive plunger e is notarranged to strike the detonatoi c, but strikes against the percussioncap d, embedded inthe pio,

pelling charge p whereby the formerignites the latter, which thenpropels the plunger Z and a friction Wire for saidtime, fuse en- 2Qagainst the detonator 11n this manner a gaged by a notcho',said-stripy,I,iA properly timed explosion of the grenade is 3. In agrenade proected'fr'ornfa small insured under all circumstances. The twoarm, a percussion fuse, a plunger for 'said priming rings m, which aregraduated on percussion fuse, a strip, a hook on .the inner the outside,enable in the usual manner the4 end of said strip engaged with saidplunger, 25

time fuse to be adjusted with precision. inwardly directed hooks on theforked outerprojection of said grenade.

I claim: end of said strip,.a time fuse and a fricl. In a grenadeprojected :from a small. tion Wire for said time fuse engaged bya arm, apercussion fuse, a plungenfor said Vnotch of said strip. percussionfuse, a time fuse, -an ignitenior Signed at Vienna, in tlie Province ofv30 said time-fuse and combined means for re- Lower-Austria and EmpiregfoAustria-4 taining said plunger until projection of the Hungary, thisIith dayof December,qA..D. grenade and for actuating said Aigniter on1912. i

Q. In a grenade projected from a small FRANZ arm, a percussion fuse, aplunger for said v Witnesses: percussion fuse, a strip engaged with saidWILHELM BERGER,

plunger and with the small arm,.a time fuse AUGUST FUGGER. i

